Senior Applied Scientist, Ads Personalization

Location: Mountain View, California, USA

Salary: $188,200–$244,600 gross annually in Zone A; $167,200–$217,300 in Zone B; $148,700–$193,300 in Zone C

Company

hirify.global develops a leading game engine and 3D development platform used across games, XR, web, automotive, manufacturing, and healthcare.

What you will do

• Design, implement, and maintain user understanding models.
• Improve ad ranking, conversion prediction, recommendation systems, behavioral models, and bidding strategies.
• Monitor model performance, calibrate predictions, and address data drift and delayed feedback.
• Work with technical leads to define the team’s long-term direction and oversee engineering design and project execution.
• Communicate complex technical concepts to non-engineering stakeholders.

Requirements

• Advanced degree in Computer Science, Machine Learning, Statistics, or a related field, or equivalent practical experience.
• At least 5 years of experience building and operating large-scale advertising delivery and optimization systems.
• At least 3 years of experience in content understanding, behavior modeling, user profiling, and cohort analysis.
• Significant experience with a general-purpose programming language such as Python, Go, Scala, or C++.
• Knowledge of metric design, experimentation methodologies, and large-scale data analysis.
• Professional English proficiency is required for frequent verbal and written communication with colleagues and partners worldwide.

Nice to have

• Experience designing and productionizing optimization algorithms for ad-serving platforms or marketplaces.
• Experience with control systems and reinforcement learning algorithms.

Culture & Benefits

• Collaborative and innovation-focused environment.
• Health, life, and disability insurance, with offerings varying by country and employment status.
• Retirement or pension plans, vacation and personal days, and family-care programs.
• Employee stock ownership, training and development programs, and mental health support.
• Employee resource groups, global employee assistance, office food, commute subsidy, and volunteering and donation matching.